The MOA is 20! Time flies when you're shopping. In two decades, the Mall of America has weathered criticism, economic downturns and occasional bad publicity, but officials with the Megamall say the international tourist draw has a bright future.

Changes are in the works at the Mall of America, which marked its 20th birthday over the weekend. Nearly $500 million worth of projects are underway or on the drawing board. Many - including a new Radisson hotel - will cater to high end customers.

The magazine says the entire timeline of mall development can be carved into two eras: Before MoA and After MoA. The Bloomington mall gets about 40 million visitors a year, according to the magazine, which puts it well ahead of anyone else.

The 1981 royal wedding gown will be the centerpiece of the exhibit "Diana: A Celebration," which opens at the mall on Saturday. The exhibit will feature her designer dresses, family heirlooms, paintings and rare home movies and photos.

Could Paul Blart be coming to the Mall of America? Kevin James, who visited the mall recently to promote his new movie "Here Comes the Boom," likes the idea of it and says "it very possibly could be happening."